Dylan Stanley Dougherty can now add two more charges to his laundry list of alleged offenses: conspiracy to escape and possession of contraband.

Dougherty was one-third of the "outlaw siblings" who led police on a one-week manhunt across the United States until the trio was apprehended.

The 26-year-old was allegedly able to leave his cell at the Huerfano County Jail through a plumbing access panel.

The Associated Press reported a deputy found footprints in the ceiling, along with the note to his sister, Lee Grace Dougherty, which detailed his plans to subdue the guards and then break her out of jail.

A knife and a letter to the FBI were also reportedly found in Dougherty's cell.

He was transferred to the Pueblo County Jail on Jan. 12, where he is listed as being on a "courtesy hold."

Ryan Dougherty, 21, his sister Lee Grace E. Dougherty, 29, and half-brother Dylan Dougherty Stanley, 26 -- dubbed the "Dougherty gang" -- were allegedly driving as fast as 100 miles per hour on Aug. 2 when a Zephyrhills, Fla., police officer attempted to pull them over. They fired 20 shots at the officer and escaped when one of the bullets hit the police car's tire. The officer was not injured.

Later that day, the Dougherty gang allegedly robbed a bank Valdosta, Ga., bank while wearing masks and firing rounds from an AK-47 at the ceiling.

Police caught up with the siblings on Aug. 10, 2011, in Colorado after a tip they were spotted buying camping equipment. After a 20-mile chase down the interstate, the pursuit culminated in the Doughertys' car flipping over and landing on top of a guard rail.

The siblings share a lengthy criminal history that includes 20 felonies among them, not withstanding the additional 70 charges they racked up from their crime spree. Their previous charges range from drug possession to battery and to burglary.